Solve the problem. Round your result to an appropriate number of significant digits.Raul, who is 1.98 m tall, wishes to find the height of a tree. He walks 18.87 m from the base of the tree along the shadow of the tree until his head is in a position where the tip of his shadow exactly overlaps the end of the tree top's shadow. He is now 5.77 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 2.85 m
B. 0.605 m
C. 8.46 m
D. 6.48 m
Answer: C
Mathematics
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Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 45° + i sin 45°)w = 5(cos 15° + i sin 15°)Find 
.
A. 
(cos 45° + i sin 45°)
B. 2(cos 30° + i sin 30°)
C. 2(cos 45° + i sin 45°)
D. 
(cos 30° + i sin 30°)
Mathematics
Solve the equation.
= 3
A. {6} B. {1} C. {15} D. {3}
Mathematics
The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 
, y = 5
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics
Evaluate the equation. 
What will be an ideal response?
Mathematics